Transferrin; Carbohydrate Deficient Transferrin (CDT); %CDT
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Carbohydrate-deficient Transferrin (CDT) (Alcohol Use), Serum
Test ID: TRANSCD
Test
Method
Nephelometry
Report Includes
Specimens
Serum
Clinical Utility
Heavy alcohol use (defined as >4 or 5 beverages per day for two weeks or more) is commonly associated with elevated CDT levels as are certain liver diseases such as primary biliary cirrhosis and chronic active hepatitis and in some patients with genetic D variants of transferrin. CDT isoform analysis for evaluation of Congenital Disorders of Glycosylation (CDG) is also available: Carbohydrate Deficient Transferrin (CDT) for Congenital Disorders of Glycosylation (CDG), Serum.
Test Location
Quest Diagnostics, Virginia USA
Test Version
18-Mar-2020
Specimen
Specimens
Serum
Collection Containers
Gold top (SST)
Sample Volume
1.0 mL
Minimum Volume
0.5 mL
Collection & Handling
Handling Information
Serum samples must be fully coagulated, centrifuged within 1 hour of collection, and must not contain any particles or traces of fibrin after centrifugation. Transfer serum to a clean, plastic, screw-cap vial.
Stability
| Ambient | 24 hours |
|---|---|
| Refrigerated | 7 days |
| Frozen | 90 days |
Rejection Criteria
| Hemolysis | Gross |
|---|---|
| Lipemia | Gross |
| Other | Grossly icteric |
Test Version
18-Mar-2020
Performance / Interpretation
Method
Nephelometry
Turnaround Time
7 days
Results
| Name | Units | Reference Range | Conversion Factor | |
|---|---|---|---|---|
| Carbohydrate Deficient Transferrin (CDT) | mg/L |
|
||
| Transferrin | mg/dL |
|
||
| %CDT | % |
|
||
Test Location
Quest Diagnostics, Virginia USA
Test Version
18-Mar-2020
Interface / Setup
HL7 Interface Codes
| Order Code | Result Codes | Units |
|---|---|---|
| TRANSCD | 62044TRANSFERRIN | mg/dL |
| 62045%CDT | % | |
| 62046CDT | mg/L |
Test Version
18-Mar-2020